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Finding the Fourth Proportional to 402,583.94, 555,453.98 and 266,574.42

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Solution

The fourth proportional to 402,583.94, 555,453.98 and 266,574.42 is: 367,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,583.94 : 555,453.98 = 266,574.42 : x
  2. Step 2: Convert to fraction form
    402,583.94/555,453.98 = 266,574.42/x
  3. Step 3: Cross multiply
    402,583.94x = 555,453.98 × 266,574.42
  4. Step 4: Simplify right side
    402,583.94x = 148,069,822,555.19
  5. Step 5: Solve for x
    x = 148,069,822,555.19/402,583.94
  6. Step 6: Final answer
    x = 367,798.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.